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AI Foundations0%

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← AI Foundations

0 of 169 complete

○Lesson 101What Is AI, Really?
○Lesson 102How Machines Learn From Examples
○Lesson 103Words Are Secretly Numbers
○Lesson 104A Brain Made of Many Tiny Layers
○Lesson 105Where Do AI's Examples Come From?
○Lesson 106Why AI Tests Are Tricky
○Lesson 107Does AI Think, or Just Remember?
○Lesson 108Why Bigger AI Got Smarter
○Lesson 109Specialist AI vs. Do-Everything AI
○Lesson 110Why AI Is Different From Regular Apps
○Lesson 551Math Helpers: When Your Phone Can Solve It
○Lesson 552Science Questions: Asking AI Why the Sky Is Blue
○Lesson 553Reading Help: Getting AI to Summarize a Story
○Lesson 554History Detective: Primary Sources and AI
○Lesson 555Vocabulary Drill: Learning Words With AI
○Lesson 556Making Your First AI Image
○Lesson 557When AI Helps vs. When It Cheats
○Lesson 558AI for English Learners: Your Pocket Translator Friend
○Lesson 559Note-Taking With AI: The Voice-Memo Trick
○Lesson 560AI for Dyslexia: Reading Without the Struggle
○Lesson 561PE and Health: Apps That Watch You Move
○Lesson 562ADHD Tools: AI Timers, Planners, and Focus Help
○Lesson 563Music Class: Asking AI to Explain Songs
○Lesson 564Computer Science: AI That Explains Code
○Lesson 565Test Prep Basics: Practicing With AI
○Lesson 601World Geography: Exploring Places with AI
○Lesson 850Real or Fake? The Picture Detective Game
○Lesson 851AI Family Tree Match-Up
○Lesson 852Prompt Builder Arcade
○Lesson 853Token Counter Showdown
○Lesson 854Hallucination Hunt
○Lesson 855The Temperature Dial
○Lesson 856AI or Human? Writing Edition
○Lesson 857Helpful or Sneaky?
○Lesson 858Match the AI to the Job
○Lesson 859Best Prompt for School Stuff
○Lesson 860Which AI Should I Pick?
○Lesson 861Deepfake Detective Quiz
○Lesson 862Can You Fool the AI?
○Lesson 863Privacy Sort: What to Tell AI
○Lesson 901What Is Data, Anyway?
○Lesson 902Structured vs. Unstructured Data
○Lesson 903Rows and Columns: The Atoms of Data
○Lesson 951Before Computers: Babbage and Lovelace
○Lesson 957ELIZA: The First Chatbot
○Lesson 963Deep Blue Beats Kasparov, 1997
○Lesson 972ChatGPT, November 2022
○Lesson 1545Talking to a Chatbot for the Very First Time
○Lesson 1546AI Helpers in Your Favorite Video Games
○Lesson 1547What Confuses AI: Things Humans Get Easily
○Lesson 1548AI in Cartoons — What's Pretend, What's Real
○Lesson 1550How to Double-Check AI When Something Feels Off
○Lesson 1551AI vs Robots — They're Not the Same!
○Lesson 1556Animals and AI — Can Computers Understand Pets?
○Lesson 1560Self-Driving Cars — How Cars Learn to Drive
○Lesson 1561Training Data Tour — Where AI Gets Its Examples
○Lesson 1563AI Giveaways — Tiny Mistakes That Reveal a Fake Picture
○Lesson 1567Robots That Learn From Watching
○Lesson 1568How AI Hears Your Voice
○Lesson 1569The Future of AI — When YOU Grow Up
○Lesson 1725How to Open Tendril for the First Time
○Lesson 1726How to Make Your Tendril Account
○Lesson 1727How to Find Your First Lesson
○Lesson 1728How to Mark a Lesson Complete
○Lesson 1729How to Take a Quiz
○Lesson 1730How to Get a Certificate
Lesson 1731How to Read a Glossary Entry
○Lesson 1732How to Bookmark a Lesson
○Lesson 1733How to Write a Lesson Note
○Lesson 1734How to Share Progress on X (Twitter)
○Lesson 1735How to View Your Dashboard
○Lesson 1736How to Print Your Certificate
○Lesson 1737How to Switch Between Explorers, Builders, and Creators
○Lesson 1738How to Find Lessons in Your Interest Area
○Lesson 1739How to Ask a Question or Get Support
○Lesson 11500What Even Is AI? A Big Word Made Small
○Lesson 11501How AI Learned to Talk: The Story of Reading a Million Books
○Lesson 11502When AI Gets Things Wrong: It Happens More Than You Think
○Lesson 11503Good Questions Get Good Answers: A Tiny Trick That Works on AI
○Lesson 11504AI Chatbot vs Search Engine: When to Use Which
○Lesson 11505AI Does Not Know You — And That Is Actually Okay
○Lesson 11506There Is Not Just One AI: Meet a Few of the Big Ones
○Lesson 13000AI vs Regular Apps: What's the Difference?
○Lesson 13001AI Knows About Words, Not About Truth
○Lesson 13002AI Is Not the Same as the Internet
○Lesson 13003Quick Tour of AI History: From 1950 to Now
○Lesson 13004AI Cannot Always Explain Why It Says What It Says
○Lesson 14400Things AI Cannot Do (Even In 2026)
○Lesson 14401Is AI Creative? Sort Of, Kind Of, Not Really
○Lesson 14402Your Future Job Probably Does Not Exist Yet
○Lesson 14403Why Building Trust With AI Tools Takes Time
○Lesson 14404AI Rules Keep Changing — How to Stay Updated
○Lesson 14900AI Is Amazing for Learning a Language
○Lesson 14901How AI Will Be in Every School by Time You Finish
○Lesson 14902Use AI to Grow as a Person, Not Just Get Stuff Done
○Lesson 14903AI Has No Real Experiences (Just Knowledge of Them)
○Lesson 14904Stay YOURSELF Even With All the AI Around
○Lesson 17000How AI Learns to See Pictures
○Lesson 17001AI Needs Electricity to Think
○Lesson 17002AI Is Really a Prediction Machine
○Lesson 17003AI Can't Feel Pain or Joy
○Lesson 17004AI Turns Everything Into Numbers
○Lesson 17005AI Brains Can Be Copied
○Lesson 17006Why AI Often Misses the Joke
○Lesson 17007AI Brains Get Old If Not Updated
○Lesson 17008When AI Just Makes Stuff Up
○Lesson 17009AI Comes in Many Shapes
○Lesson 17500How AI Counts Words to Pick the Next One
○Lesson 17501Why AI Is Really Good at Spotting Patterns
○Lesson 17502How AI Read Almost the Whole Internet
○Lesson 17504How AI Learned to Speak Lots of Languages
○Lesson 17505Why AI Forgets the Start of a Long Chat
○Lesson 17506How AI Chops Up Words Into Tiny Pieces
○Lesson 17508Why AI Can Be Unfair Without Meaning To
○Lesson 17509Why It's Important That Humans Can Turn Off AI
○Lesson 18500AI and the Pause Button: When to Stop and Think
○Lesson 18502AI and the Confidence Trick: Sounding Sure but Being Wrong
○Lesson 18503AI and Being Helpful: How AI Tries to Please You
○Lesson 18505AI and the Magic Myth: It's Math, Not Magic
○Lesson 18506AI and Being Different Each Time: Why Answers Change
○Lesson 18507AI and Its Many Shapes: Chatbots, Art, Voice, and More
○Lesson 18508AI and the Off Button: Knowing When to Stop Using It
○Lesson 18509AI and Being a Tool: It Works for You, Not the Other Way
○Lesson 19501Why AI Sometimes Miscounts the Letter R in 'Strawberry'
○Lesson 19503Does AI Remember You from Yesterday? Usually Not
○Lesson 19505Where Does AI Actually Live? In Giant Computer Rooms
○Lesson 19506There Are Many Different AIs, Not Just One
○Lesson 19508How AI Looks at Pictures Without Real Eyes
○Lesson 19509AI Has No Body — So It Can't Taste Pizza
○Lesson 20503Why AI Looks Like It's Typing One Word at a Time
○Lesson 20504Every AI Has Secret Instructions Before You Even Type
○Lesson 20505Big AIs and Tiny AIs: Not All Are the Same Size
○Lesson 20506AI Speaks Hundreds of Languages — Some Better Than Others
○Lesson 20508Is AI Like a Real Brain? Not Really
○Lesson 22000AI Doesn't Recognize Itself in a Mirror
○Lesson 22002AI Never Has 'Writer's Block'
○Lesson 22006AI Can Give Two Different Answers to the Same Question
○Lesson 22007AI Can Switch Languages Mid-Sentence
○Lesson 22008Millions of People Talk to the Same AI at Once
○Lesson 22009Asking AI Uses Real Electricity
○Lesson 23500How AI Spots Patterns Faster Than You Can Blink
○Lesson 23503The Million Tiny Knobs Inside an AI Brain
○Lesson 23504Narrow AI vs General AI: What's the Difference?
○Lesson 23506What's the Difference Between an AI Model and an AI App?
○Lesson 23507AI Is Math, Not Magic: The Big Truth
○Lesson 23508Why AI Uses So Much Electricity (and Water!)
○Lesson 23509AI Is Older Than You Think: A Quick History
○Lesson 26501Why AI Sometimes Adds a 'Thinking Pause'
○Lesson 26505Why a Smart AI Will Say 'I Don't Know'
○Lesson 26506Tiny AI Lives Inside Big AI
○Lesson 26507When AI Lives Right Inside Your Phone
○Lesson 26508AI Quietly Picks the Most Likely Word
○Lesson 26509AI Reads a Hidden Rule Book Before You
○Lesson 28001AI Reads Tiny Word Chunks Called Tokens
○Lesson 28003AI Stopped Learning on a Specific Day
○Lesson 28004Companies Train AI to Act Their Way
○Lesson 28005Humans Gave AI Thumbs Up to Train It
○Lesson 28006Some AI Can See Pictures and Hear Sound
○Lesson 28007Why AI Types Words One at a Time
○Lesson 28008AI Has Guardrails to Block Bad Answers
○Lesson 29503Why AI Sometimes Doesn't Know What Day It Is
○Lesson 29506How AI Picks Between 'Safe' and 'Creative' Answers
○Lesson 29507Why There Are Lots of Different AI Models
○Lesson 29508Why AI Can't Actually Feel Happy or Sad
○Lesson 29509Why a Bigger AI Isn't Always a Smarter AI
○Lesson 33400What Is AI, Anyway?
○Lesson 33403AI vs Search Engines
○Lesson 33404AI Doesn't Have Feelings
○Lesson 33405AI Needs Electricity and Computers

Curriculum
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Explorers
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AI Foundations
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How to Read a Glossary Entry

Lesson 102 of 1169

How to Read a Glossary Entry

Look up any unfamiliar word — quickly, with examples and links to lessons.

Explorers · AI Foundations · ~3 min read

Where the glossary lives

In the top menu, click 'Glossary.' You can scroll the alphabetical list, or type a word in the search box.

Anatomy of an entry

A short definition you can read in one breath.
A longer definition with more depth.
Synonyms — the same idea by other names.
Related terms — words that often come up together.
Example sentences in plain English.

When to use the glossary

If you are reading a lesson and a word slows you down, open the glossary in a second tab. Read the entry. Come back to the lesson.

Key terms in this lesson

glossary
definition
synonym

The big idea: the glossary is a dictionary built for AI. It is okay to use it often.

Practice step

Pause after the example and write one sentence about what you would check before trusting the answer. Then compare that sentence with the lesson goal and revise it once.

Keep exploring!

The more you learn about AI, the better you'll understand the world around you. Every question you ask is a step forward.

You did it! 🎉

Amazing job finishing "How to Read a Glossary Entry"! You're one step closer to becoming an AI expert!

Practice this safely

Try this with a low-stakes example and a trusted adult nearby. The goal is to notice how AI talks about glossary, not to let it make the decision for you.

1Ask AI to explain glossary in plain language, then underline anything that sounds uncertain or too broad.
2Give it one detail from "How to Read a Glossary Entry" and ask for two possible next steps plus one reason each step might be wrong.
3Check definition against a trusted source, teacher, adult, expert, or original document before you use it.

If the answer affects another person, a grade, money, safety, or a public post, slow down and verify it with a reliable source.

End-of-lesson quiz

Check what stuck

8 questions · Score saves to your progress.

Lesson help

Questions are best handled with a grown-up here.

For this age range, Tendril keeps freeform AI chat paused until parent/guardian consent and child-safe moderation are fully verified. Use the quiz, notes, and related lessons below, or ask a parent, guardian, teacher, or librarian to work through the question with you.

Progress saved locally in this browser. Sign in to sync across devices.

Related lessons

Keep going

Explorers · 5 min
How to Find Lessons in Your Interest Area
Use Tracks and Search to find lessons about exactly what you care about — health, finance, family, hobbies, anything.
Explorers · 5 min
What Even Is AI? A Big Word Made Small
AI stands for artificial intelligence. That sounds fancy, but it just means a computer that can do things that used to need a person. Let's see what that really looks like.
Explorers · 5 min
AI vs Search Engines
AI chats; search engines list links — they're different tools.

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